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Prev Professional Automotive Repair Technical Discussions for May 28, 2004
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Open Help Requests for GM
Help Request Answers
1997 Buick Century Limited 3.1L windshield wipers VIN: 2G4WY52M8V
help!!! customer came in with wipers in the up position. they will wait in their normal position while in delay but they park straight up. no work has been recently done. i believe that the multi function switch maybe responsible but i am unable to prove so an...
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1983 Chevrolet C10 Suburban Custom 6.2L engine VIN: 1G8EC16C4D
Replaced blown head gaskets and cracked heads with customer supplied reman heads. Vehicle is hard to start and runs rich all temps with rough idle. All injectors have been checked for flow and lines bled numerous times.Injection pump was not moved during proce...
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1989 Chevrolet Camaro Iroc-Z 5.0L ac VIN: 1G1FP21E1K
Car had been sitting for one year. Check of dye in AC system showed leaks at compressor and evaporator. Replace compressor, evaporator, accumulator and orfice tube, all AC Delco. Retro fitted to 134, dropped R12 charge of 36oz down 20% to 28oz. Used OEM white ...
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1999 Chevrolet Blazer 4.3L MIL Lamp on VIN: 1GNCS13W2X
This blazer came in with these codes the first time and I'm thinking that the fuse is probably blown.It's not.I.ve checked powers and ground to al three heaters as well as voltage drops.Also observed three times on the techview all 3 o2s lighting off within th... Trouble codes: 135 (b1s1 O2 heater), 155 (b2s1 O2 heater), 147 (b1s3 O2 heater)
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1988 GMC C2500 Sierra 5.7L Poor Idle Quality, Surge, Cuts out, LACKS POWER VIN: 2DTFC29K9J
customer complains of intermittent sudden lack of power. cannot exceed 30 kmh. i have not been able to duplicate problem. also complians of stumble/ misfire. problem occurs mostly in gear just off idle, but can also occur at higher loads. tested all basics wit...
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1995 Pontiac Bonneville SE 3.8L Poor Idle Quality, Stall, MIL Lamp on, No excelleration VIN: 1G2HZ52K0S
Hi all of you GM Techs. I have a 1995 Pontiac Bonniville SSE in the shop with a Poor run/No start problem. Costomer states Initially it stumbled a couple of times and then started to lack power on acceleration. Parked car for the evening. The next day, drove c... Trouble codes: 171 (Lean condition), 131 (O2 sensor lean)
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1997 Pontiac Sunfire GT 2.4L Misfire VIN: 1G2JD12T4V
vehicle came in with amisfre ,scanned system ,engine misfire was the only code present .entered data stream cylinder 1 and 2 misfiring ,checked spark at all 4 cylindersall cylinders have spark .checked resistance on all injectors ,all within specs , checked wi...
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2000 Pontiac Grand Am SE 3.4L ABS Light VIN: 1G2NF12F6Y
ABS light comes on, when the car came in shop light was out. No current codes, history codes C1236 low voltage, C1257 left front ABS motor shorted, C1262 right front ABS motor shorted, C1265 Rear ABS motor shorted, C1273 VES open or shorted, C1286 low voltage,...
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Fixes & Summaries for GM
Fix/Summary Answers
1998 Cadillac DeVille 4.6L abs light traction control light VIN: 1G6KD54YXW
We replaced the right front hub assemly. The wheel speed sensor was the problem, could not buy seperatly. Thanks to all whom replied!
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1987 Chevrolet R10 Custom Deluxe 5.0L Stall VIN: 1GCDR14H2H
Thank's to all the replies. Those who said to check the pickup coil you nailed it. After 3 distributor assemblys from local store the truck runs fine. All the help was greatley appriciated.
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1987 Chevrolet V20 Scottsdale 5.7L Stall VIN: 1GTGV24K2H
Hi Guys, I want to thank everyone for there help. I had several people point to the pick up coil in the distrubutor. Well this ended up deing the problem. The after market pick coil didn't produce enough voltage at low engine speeds to trigure the icm. We repl...
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1996 Chevrolet S10 LS 4.3L No Start VIN: 1GCCS19X7T
Thanks, Mike, It was the cap and rotor causing the problem, which explaines why it would run with #2 and #4 wires off of plugs,#2 had no spark yet #4 did.I installed cap, rotor and truck started good. Thanks for everyone' help.
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2000 Chevrolet Monte Carlo LS 3.4L No Start, Stall VIN: 2G1WW12E9Y
i tried many things to fix this problem. it seem like ignition switch fixed the problem. after i replaced it, it wouldn't stall anymore. but it was intermittent, so it may be just not acting up. Trouble codes: P1626, U1016.
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1992 Oldsmobile Cutlass Cruiser S 3.3L Cuts out VIN: 1G3AL54N2N
First the fix. Apperantly it was the crank sensor. Now the replies and then some comments. Unplug fan, clean module plate for good ground, test 12v and ground at module, wiggle wires, crank sensor, knock sensor, injectors, heat parts with hair dryer, ignition ...
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1993 Saturn SL2 1.9L Misfire VIN: 1G8ZK5577P
Several of our replies suggested swapping the injectors to see if the miss followed. While this wasn't an Ideal option that is what we did, and the miss followed the suspect injectors. Replacing the injectors has ended the intermintant dead miss. I am saving t...
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